1、OE Number: The referencing OE number of this engine gear box anode is 68T 45251 00, which is molded and designed depend on the original data. 2、Fitment: The lower unit gear box anode is a replacement for F6A F6B F8C four stroke outboard, please check your ourboard engine before ordering. 3、Application: It should be replaced when the engine shows signs of corruption, and as a first line of defense, the anode is used for corruption, not your engine. 4、Premium Material: The anode is professional manufactured, it is more corruption resistant and durable, and better protects your outboard engine from seawater and long term application. 5、Installation: You just need to find the old anode in the position of your outboard engine and replace it with this anode in the same position, without additional tools and will not damage your engine.